[1Bradymichael]

My brother has a 96 that runs great, but between 35 to 45 mph, under light load at low rpm, the engine seems to cut out a little bit. I am not a Ford man but I know on others a bad plug wire can cause this. Under heavy acceleration it shifts and runs great. Any one have any idea's, and what a normal resistance reading is for a plug wire(does it depend on the length of the plug wire)?

Also had a problem with the heater not getting very hot. Replaced the thermostat, which helped the problem somewhat, but not completly. One heater hose is hot and the other fairly warm, but I wonder if the heater core is getting dirty? Fan only works on low and high. Can it be just the switch for the fan, or is there another relay I can look for?

Thanks in advance.